Peanuts lead allergy list, national survey finds

Canada’s first nationwide food allergy survey shows that about 1.7 per cent of children under 18 have a probable peanut allergy, while another 1.59 per cent have a probable allergy to tree nuts, such as hazelnuts and walnuts.

This study was from 2008-2009 and was conducted over the phone to 10000 families. That’s a good sized sample and shows that a great many children are affected.

It’s also notable that there is a great difference between results in the US and Canada.

He says the rates are higher in Canada than in the U.S. — a 2002 American study found that 0.83 per cent of children have peanut allergies and 0.51 per cent are allergic to tree nuts.

Keep in mind the time between studies. It is possible for those results to have changed in 6 years.